Killer Caterpillar

You need to be wearing a mask with good filters too. It's also a lung irritant and the fumes will get to you. As an emergency stop gap it has potential but as a long term tool you're better off using one of the fast drying putties like vallejo's plastic putty. Much safer and you don't have to deal with sanding down resin and all the hassle that requires to do safely. UV resins for creating lens or gems is different though. Getting colours without having to mix up small amounts of 2 part resins is their best usage IMO. You're not going to be sanding or cutting it and you can leave it to cure under the uv light for a while. Once the resins gone hard, it still needs a bit more curing or you risk deeper resin being uncured and causing a crack.

I'm trying the hairspray technique for the first time and I'm curious about drying time on each step. I airbrushed the model 2 hours ago, varnished it an hour ago with dull coat and I'm waiting to apply hair spray now. How long should you wait? Dullcoat dries to the touch pretty fast but I don't know if it will blend with hair spray. How long after hair spraying can you apply paint over that?